#define _CRT_SECURE_NO_WARNINGS 1
#include<stdio.h>
int main()
{
	int a = 0;
	int b = 0;
	int c = 0;
	int d = 0;
	scanf("%d", &a);
	b = a / 100;
	c = (a / 10) % 10;
	d = a % 10;
	printf("%d%d%d", d, c, b);
	return 0;
}